Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 42 Issue 4
Turn off MathJax
Article Contents
Abstract
References
Related Articles
ZHOU Zi-han, CHEN Zhong-hui, WANG Jian-ming, NIAN Geng-qian, CHEN Shuai, BAO Min. Propagation of offset parallel cracks in rock under unloading conditions[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(4): 721-730. DOI: 10.11779/CJGE202004015
Citation: ZHOU Zi-han, CHEN Zhong-hui, WANG Jian-ming, NIAN Geng-qian, CHEN Shuai, BAO Min. Propagation of offset parallel cracks in rock under unloading conditions[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(4): 721-730. DOI: 10.11779/CJGE202004015
shu

Propagation of offset parallel cracks in rock under unloading conditions

  • School of Mechanics & Civil Engineering, China University of Mining and Technology, Beijing 100083, China

More Information
  • Received Date: May 23, 2019
  • Available Online: December 07, 2022
    Graphical Abstract
    • Abstract
  • The numerous non-penetrating intermittent joints in rock slopes play an important role in controlling the strength and failure mode of rock mass under excavation disturbance. In order to determine the meso-influence laws of intermittent joint interaction in the slope under the action of excavation, using the superposition principle and the Kachanov method, the stress intensity factor of parallel offset double cracks at the tip in rock mass under unloading conditions is calculated, the influences of many factors on the interaction between cracks are theoretically analyzed, and the unloading tests on rock-like specimens with parallel offset cracks are conducted. The results show that: (1) The interaction at the crack tips becomes more severe and sensitive if the length of the main crack larger or the staggered distance between the cracks or the length of rock bridge is shorter. (2) As the inclination angle of cracks increases, the tensile failure gradually increases but shear failure weakens. (3) The sensitivity of the amplification factors of the stress intensity factor affected by the angle is positively correlated with the length of rock bridge. In addition, the axial-initiation stresses of cracks in different specimens theoretically calculated under unloading conditions are compared with the measured ones by tests, and it is found that the relative error between them are all less than 4.7%, revealing that the proposed theoretical formula is a reasonable and feasible method to calculate the axial-initiation stresses of cracks. The propagation laws of the offset parallel cracks in rock under unloading conditions are revealed and are conducive to the studies on meso-failure mechanism of jointed rock slopes in open-pit mines under the action of excavation.
    • FullText(HTML)
    • References (15)
  • [1]
    HUANG D, CEN D F, MA G W, et al. Step-path failure of rock slopes with intermittent joints[J]. Landslides, 2015, 12(5): 911-926. doi: 10.1007/s10346-014-0517-6
    [2]
    TANG C A, LIN P, WONG R H C, et al. Analysis of crack coalescence in rock-like materials containing three flaws—Part II: Numerical approach[J]. International Journal of Rock Mechanics & Mining Sciences, 2001, 38(7): 925-939.
    [3]
    BOBET A, EINSTEIN H H. Fracture coalescence in rock-type materials under uniaxial and biaxial compression[J]. International Journal of Rock Mechanics and Mining Sciences, 1998, 35(7): 863-888. doi: 10.1016/S0148-9062(98)00005-9
    [4]
    WONG R H C, CHAU K T. The coalescence of frictional cracks and the shear zone formation in brittle solids under compressive stresses[J]. International Journal of Rock Mechanics and Mining Sciences, 1997, 34(3): 335.
    [5]
    杨圣奇. 断续三裂隙砂岩强度破坏和裂隙扩展特征研究[J]. 岩土力学, 2013, 34(1): 31-39. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201301004.htm

    YANG Sheng-qi. Study of strength failure and crack coalescence behavior of sandstone containing three pre-existing fissures[J]. Rock and Soil Mechanics, 2013, 34(1): 31-39. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201301004.htm
    [6]
    赵程, 鲍冲, 田加深, 等. 基于应变局部化的双裂纹岩样贯通模式及强度试验研究[J]. 岩石力学与工程学报, 2015, 34(11): 239-2318. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201511015.htm

    ZHAO Cheng, BAO Chong, TIAN Jia-shen, et al. Experimental study of coslescence mode of cracks and strength of rock with double flaws based on strain localization[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(11): 2309-2318. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201511015.htm
    [7]
    黄达, 金华辉, 黄润秋. 拉剪应力状态下岩体裂隙扩展的断裂力学机制及物理模型试验[J]. 岩土力学, 2011, 32(4): 997-1002. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201104005.htm

    HUAND Da, JIN Hua-hui, HUANG Run-qiu. Mechanism of fracture mechanics and physical model test of rocks crack expanding under tension-shear stress[J]. Rock and Soil Mechanics, 2011, 32(4): 997-1002. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201104005.htm
    [8]
    刘磊, 贾洪彪, 马淑芝. 考虑卸荷效应的岩质边坡断裂损伤模型及应用[J]. 岩石力学与工程学报, 2015, 34(4): 747-754. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201504011.htm

    LIU Lei, JIA Hong-biao, MA Shu-zhi. A fracture damage model for rock slopes under unloading and its application[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(4): 747-754. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201504011.htm
    [9]
    黄润秋. 岩石高边坡发育的动力过程及其稳定性控制[J]. 岩石力学与工程学报, 2008, 27(8): 1525-1544. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200808004.htm

    HUANG Run-qiu. Geodynamical process and stability control of high rock slope development[J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27(8): 1525-1544. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200808004.htm
    [10]
    何庆芝, 郦正能. 工程断裂力学[M]. 北京: 北京航空航天大学出版社, 1993.

    HE Qing-zhi, LI Zheng-neng. Engineering Fracture Mechanics[M]. Beijing: Beihang University Press, 1993. (in Chinese)
    [11]
    KACHANOV M. A simple technique of stress analysis in elastic solids with many cracks[J]. International Journal of Fracture, 1985, 28(1): 11-19.
    [12]
    席婧仪, 陈忠辉, 朱帝杰, 等. 岩石不等长裂纹应力强度因子及起裂规律研究[J]. 岩土工程学报, 2015, 37(4): 727-733. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201504023.htm

    XI Jing-yi, CHEN Zhong-hui, ZHU Di-jie, et al. Stress intensity factors and initiation of unequal collinear cracks in rock[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(4): 727-733. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201504023.htm
    [13]
    中国航空研究院. 应力强度因子手册(修订版)[M]. 北京: 科学出版社, 1996: 38-39.

    Chinese Aeronautical Establishment. Handbook of Stress Intensity Factors (Revised Edition)[M]. Beijing: SciencePress, 1996: 38-39. (in Chinese)
    [14]
    宋彦琦, 李名, 王晓, 等. 基于高速摄影的双预制裂纹大理岩加卸载试验[J]. 岩石力学与工程学报, 2015, 34(增刊1): 2679-2689. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2015S1012.htm

    SONG Yan-qi, LI Ming, WANG Xiao, et al. Experimental test on marble containing two pre-existing cracks under loading and unloading conditions based on high-speed photography[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(S1): 2679-2689. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2015S1012.htm
    [15]
    范天佑. 断裂理论基础[M]. 北京: 科学出版社, 2003: 73-100.

    FAN Tian-you. Theoretical Basis of Fracture[M]. Beijing: Science Press, 2003: 73-100. (in Chinese)
    • Related Articles

  • Related Articles

    [1]HOU Gongyu, SHAO Yaohua, LIU Chunlei, WANG Yizhe, CHEN Qinhuang, HU Zhiyu, ZHAO Qingru. Unloading deformations of surrounding rock in jointed roadways[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(3): 616-623. DOI: 10.11779/CJGE20230028
    [2]SHU Rong-jun, KONG Ling-wei, WANG Jun-tao, JIAN Tao, ZHOU Zhen-hua. Mechanical behavior of granite residual soil during wetting considering effects of initial unloading[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S1): 154-159, 165. DOI: 10.11779/CJGE2022S1028
    [3]ZHANG Kun-yong, LI Guang-shan, MEI Xiao-hong, DU Wei. Stress-deformation characteristics of silty soil based on K0 consolidation and drainage unloading stress path tests[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(7): 1182-1188. DOI: 10.11779/CJGE201707003
    [4]ZHU Di-jie, CHEN Zhong-hui, XI Jing-yi, YANG Deng-feng. Interaction between offset parallel cracks in rock[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(2): 235-243. DOI: 10.11779/CJGE201702006
    [5]ZHANG Wei-min, GU Xing-wen, WANG Fang, WANG Nian-xiang. Swelling tests on soils and simulation method for unloading-swelling process[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(6): 979-987. DOI: 10.11779/CJGE201506002
    [6]XI Jing-yi, CHEN Zhong-hui, ZHU Di-jie, CHEN Qing-feng. Stress intensity factors and initiation of unequal collinear cracks in rock[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(4): 727-733. DOI: 10.11779/CJGE201504019
    [7]TANG Hao, LI Tian-bin, CHEN Guo-qing, WANG Yan-ke. Triaxial unloading tests on rupture characteristics of sandstone under hydro-mechanical coupling conditions[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(3): 519-525. DOI: 10.11779/CJGE201503016
    [8]LOU Xiao-ming, LI De-ning, YANG Min, YANG Jing. Development and application of simulation system for model piles impacted by routine loading and unloading of soil[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(8): 1509-1515.
    [9]SHEN Junhui, ZHANG Jinlin, XU Jin, LIAO Ronggui, CHEN Chunwen. Testing of slope stress zones and its application to unloading zonation[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(9): 1423-1427.
    [10]Liu Guo bin, Hou Xue yuan. Unloading  Modulus  of  the  Shanghai  Soft  Clay[J]. Chinese Journal of Geotechnical Engineering, 1996, 18(6): 22-27.
    • Supplements (0)

  • Cited by

    Periodical cited type(16)

    1. 蒋明杰，石竣允，栗书亚，胡荣峰，梅国雄. 级配对粗粒土-格栅界面循环剪切特性影响试验研究. 水利水电技术(中英文). 2024(03): 162-172 .
    2. 褚福永，朱俊高，许凯，翁厚洋. 基于连续级配方程的粗粒料压实密度缩尺效应试验研究. 水利水电科技进展. 2024(03): 34-38 .
    3. 谢康，陈晓斌，肖宪普，李泰灃，张千里，尧俊凯. 高速铁路路基填料智能振动压实系统研制与试验研究. 铁道学报. 2024(06): 138-147 .
    4. 赵桂锋，蒋明杰，张振，王天成，梅国雄. 粗粒土缩尺级配的渗透系数规律试验. 工程科学与技术. 2024(05): 240-246 .
    5. 蒋明杰，朱俊高，张小勇，梅国雄，赵辰洋. 缩尺效应对粗颗粒土静止侧压力系数影响规律试验. 工程科学与技术. 2023(02): 259-266 .
    6. 蒋明杰，吉恩跃，王天成，栗书亚，朱俊高，梅国雄. 粗粒土抗剪强度的缩尺效应规律试验研究. 岩土工程学报. 2023(04): 855-861 . 本站查看
    7. 谢康，陈晓斌，尧俊凯，蔡德钩. 高铁路基填料振动压实试验参数标准化方法与应用研究. 岩石力学与工程学报. 2023(07): 1799-1810 .
    8. 沈超敏，邓刚，刘斯宏，严俊，毛航宇，王柳江. 基于颗粒堆积算法的堆石料压实密度预测研究. 水利学报. 2023(08): 920-929 .
    9. 杨孝攀，李江，杨玉生，齐吉琳，李康达. 典型工程筑坝砂砾料级配特征与压实特性研究. 岩土力学. 2022(06): 1607-1616 .
    10. 梁传扬，吴跃东，刘坚，刘辉，陈大硕，林来贺. 钙质结核含量对钙质结核土压缩性缩尺效应影响研究. 岩土工程学报. 2022(12): 2272-2279 . 本站查看
    11. 罗奇志，袁朝阳，韩雪刚，罗彪. 土石混填体缩尺效应研究现状与发展趋势. 市政技术. 2021(08): 198-201 .
    12. 朱智勇，张丹瑜，寿平山，黄曼，朱申良，张益辉. 不同颗粒粒径的松散沉积物抗剪强度试验研究. 科技通报. 2021(12): 76-82 .
    13. 张村，赵毅鑫，屠世浩，张通. 采空区破碎煤岩样压实再次破碎特征的数值模拟研究. 岩土工程学报. 2020(04): 696-704 . 本站查看
    14. 吴二鲁，朱俊高，陈鸽，包孟碟，郭万里. 粗粒料的级配方程及其适用性研究（英文）. Journal of Central South University. 2020(03): 911-919 .
    15. 崔家全，段军邦，马凌云，张路. 茨哈峡水电站砂砾石填筑料水平渗透变形特性试验研究. 西北水电. 2020(S2): 103-107 .
    16. 张村，赵毅鑫，屠世浩，郝宪杰，郝定溢，刘金保，任赵鹏. 颗粒粒径对采空区破碎煤体压实破碎特征影响机制. 煤炭学报. 2020(S2): 660-670 .

    Other cited types(12)

Catalog

    Get Citation
    PDF
    XML
    Article views (298) PDF downloads (167) Cited by(28)
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return